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1.
Zhongguo Zhong Yao Za Zhi ; 49(5): 1310-1317, 2024 Mar.
Artigo em Zh | MEDLINE | ID: mdl-38621978

RESUMO

This study investigated the effect of Erchen Decoction(ECD) on the prevention of non-alcoholic steatohepatitis(NASH) in mice and explored its possible mechanism, so as to provide scientific data for the clinical application of ECD in the prevention of NASH. C57BL/6 male mice were randomly divided into normal group(methionine and choline supplement, MCS), model group(methionine and choline deficient, MCD), low-dose ECD group(ECD_L, 6 g·kg~(-1)), medium-dose ECD group(ECD_M, 12 g·kg~(-1)), and high-dose ECD group(ECD_H, 24 g·kg~(-1)), with eight mice in each group. The MCS group was fed with an MCS diet, and the other groups were fed with an MCD diet. The mice in each group were given corresponding diets, but the drug intervention group was given low-, medium-, and high-dose ECD(10 mL·kg~(-1)·d~(-1)) by intragastric administration for six weeks on the basis of MCD diet feeding, and the mice could eat and drink freely during the whole experiment. At the end of the experiment, mice were fasted overnight(12 h) and were anesthetized with 20% urethane. Thereafter, the blood and liver tissue were collected. The serum was used to detect the levels of alanine aminotransferase(ALT), aspartate aminotransaminase(AST), interleukin-1ß(IL-1ß), interleukin-6(IL-6), interleukin-10(IL-10), and tumor necrosis factor-α(TNF-α). Liver tissue was processed by hematoxylin-eosin(HE) staining and used for hepatic histological analysis and detection of the expression levels of genes and proteins related to nuclear factor erythroid 2-related factor 2/glutathione peroxidase 4(Nrf2/GPX4) pathway by real-time quantitative reverse transcriptase-polymerase chain reaction(RT-qPCR) and Western blot analysis, respectively. The results showed that compared with the MCS group, the MCD group showed higher serum ALT and AST levels; the HE staining exhibited fat vacuoles and obvious inflammatory cell infiltration in liver tissue; serum IL-1ß, IL-6, and TNF-α levels were significantly increased, and the serum IL-10 level was significantly decreased. The mRNA expressions of fatty acid synthase(FASN), monocyte chemoattractant protein-1(MCP-1), and IL-1ß in liver tissue were significantly up-regulated, while those of GPX4, Nrf2, and NAD(P)H:quinine oxidoreductase(NQO1) were significantly down-regulated. Compared with the MCD group, the serum ALT and AST levels of ECD_M and ECD_H groups were significantly decreased, and the AST level in the ECD_L group was significantly decreased. The number of fat vacuoles and the degree of inflammatory cell infiltration in liver tissue were improved; serum IL-1ß, IL-6, and TNF-α levels were significantly decreased, but the serum IL-10 level was significantly increased only in the ECD_H group. The mRNA expressions of FASN, MCP-1, and IL-1ß in liver tissue were significantly down-regulated, and those of GPX4 and NQO1 were significantly up-regulated. The mRNA expressions of Nrf2 in ECD_M and ECD_H groups were significantly up-regulated. Western blot results showed that compared with the MCD group, the protein expression levels of Nrf2 and GPX4 in each group were significantly increased after ECD administration, and the protein expression level of FASN was significantly decreased; the protein expression of NQO1 was increased in ECD_M and ECD_H groups. In summary, ECD can reduce hepatic lipid accumulation, oxidative stress, liver inflammation, and liver injury in NASH mice, which may be related to the activation of the Nrf2/GPX4 pathway.


Assuntos
Hepatopatia Gordurosa não Alcoólica , Camundongos , Masculino , Animais , Hepatopatia Gordurosa não Alcoólica/etiologia , Hepatopatia Gordurosa não Alcoólica/genética , Metionina/metabolismo , Metionina/farmacologia , Interleucina-10/genética , Colina/metabolismo , Colina/farmacologia , Colina/uso terapêutico , Fator de Necrose Tumoral alfa/metabolismo , Interleucina-6/metabolismo , Fator 2 Relacionado a NF-E2/metabolismo , Camundongos Endogâmicos C57BL , Fígado , Racemetionina/metabolismo , Racemetionina/farmacologia , Dieta , RNA Mensageiro/metabolismo
2.
Mol Pharmacol ; 104(5): 214-229, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37595967

RESUMO

Nonalcoholic steatohepatitis (NASH) is a severe liver metabolic disorder, however, there are still no effective and safe drugs for its treatment. Previous clinical trials used various therapeutic approaches to target individual pathologic mechanisms, but these approaches were unsuccessful because of the complex pathologic causes of NASH. Combinatory therapy in which two or more drugs are administered simultaneously to patients with NASH, however, carries the risk of side effects associated with each individual drug. To solve this problem, we identified gossypetin as an effective dual-targeting agent that activates AMP-activated protein kinase (AMPK) and decreases oxidative stress. Administration of gossypetin decreased hepatic steatosis, lobular inflammation and liver fibrosis in the liver tissue of mice with choline-deficient high-fat diet and methionine-choline deficient diet (MCD) diet-induced NASH. Gossypetin functioned directly as an antioxidant agent, decreasing hydrogen peroxide and palmitate-induced oxidative stress in the AML12 cells and liver tissue of MCD diet-fed mice without regulating the antioxidant response factors. In addition, gossypetin acted as a novel AMPK activator by binding to the allosteric drug and metabolite site, which stabilizes the activated structure of AMPK. Our findings demonstrate that gossypetin has the potential to serve as a novel therapeutic agent for nonalcoholic fatty liver disease /NASH. SIGNIFICANCE STATEMENT: This study demonstrates that gossypetin has preventive effect to progression of nonalcoholic steatohepatitis (NASH) as a novel AMP-activated protein kinase (AMPK) activator and antioxidants. Our findings indicate that simultaneous activation of AMPK and oxidative stress using gossypetin has the potential to serve as a novel therapeutic approach for nonalcoholic fatty liver disease /NASH patients.


Assuntos
Hepatopatia Gordurosa não Alcoólica , Humanos , Animais , Camundongos , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Proteínas Quinases Ativadas por AMP/metabolismo , Antioxidantes/metabolismo , Fígado/metabolismo , Estresse Oxidativo , Colina/metabolismo , Colina/farmacologia , Colina/uso terapêutico , Metionina/metabolismo , Metionina/farmacologia , Camundongos Endogâmicos C57BL , Modelos Animais de Doenças
3.
Bioorg Chem ; 138: 106615, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37244229

RESUMO

A series of nine novel ether phospholipid-dinitroaniline hybrids were synthesized in an effort to deliver more potent antiparasitic agents with improved safety profile compared to miltefosine. The compounds were evaluated for their in vitro antiparasitic activity against L. infantum, L.donovani, L. amazonensis, L. major and L. tropica promastigotes, L. infantum and L. donovani intracellular amastigotes, Trypanosoma brucei brucei and against different developmental stages of Trypanosoma cruzi. The nature of the oligomethylene spacer between the dinitroaniline moiety and the phosphate group, the length of the side chain substituent on the dinitroaniline and the choline or homocholine head group were found to affect both the activity and toxicity of the hybrids. The early ADMET profile of the derivatives did not reveal major liabilities. Hybrid 3, bearing an 11-carbon oligomethylene spacer, a butyl side chain and a choline head group, was the most potent analogue of the series. It exhibited a broad spectrum antiparasitic profile against the promastigotes of New and Old World Leishmania spp., against intracellular amastigotes of two L. infantum strains and L. donovani, against T. brucei and against T. cruzi Y strain epimastigotes, intracellular amastigotes and trypomastigotes. The early toxicity studies revealed that hybrid 3 showed a safe toxicological profile while its cytotoxicity concentration (CC50) against THP-1 macrophages being >100 µM. Computational analysis of binding sites and docking indicated that the interaction of hybrid 3 with trypanosomatid α-tubulin may contribute to its mechanism of action. Furthermore, compound 3 was found to interfere with the cell cycle in T. cruzi epimastigotes, while ultrastructural studies using SEM and TEM in T. cruzi showed that compound 3 affects cellular processes that result in changes in the Golgi complex, the mitochondria and the parasite's plasma membrane. The snapshot pharmacokinetic studies showed low levels of 3 after 24 h following oral administration of 100 mg/Kg, while, its homocholine congener compound 9 presented a better pharmacokinetic profile.


Assuntos
Antiprotozoários , Doença de Chagas , Trypanosoma cruzi , Humanos , Antiparasitários/farmacologia , Antiprotozoários/farmacologia , Éteres Fosfolipídicos/uso terapêutico , Doença de Chagas/tratamento farmacológico , Colina/uso terapêutico
4.
Bratisl Lek Listy ; 124(1): 47-52, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36519607

RESUMO

OBJECTIVES: The purpose of this study is to investigate the effects of cholinergic anti-inflammatory pathway (CAP)-activating drugs, choline and citicoline (Cytidinediphosphate-choline, CDP-choline), on lipopolysaccharide (LPS)-induced acute kidney injury (AKI) parameters and the contribution of NADPH Oxidase4 (NOX4) p22phox. BACKGROUND: Endotoxemia induces a systemic inflammatory response characterized by the production of pro-inflammatory mediators and reactive oxygen species (ROS), which eventually develops acute kidney injury (AKI). NADPH Oxidase4 (NOX4) p22phox pathway contributes to the development of endotoxemia-induced AKI. Inflammatory response can be controlled by CAP. METHODS: Expressions levels of KIM-1, TNF-α, NOX4, p22phox and NFκB in the kidney tissues of rats were analyzed via RT-PCR in experimental groups; 1. Control, 2. LPS (10 mg/kg) + saline, 3. LPS + CDP-choline (375 mg/kg) and 4. LPS + choline (90 mg/kg). Choline and ROS levels in kidney tissues were also measured by a spectrofluorometric assay. RESULTS: LPS-induced elevations of ROS levels were decreased by CDP-choline or choline administration (p < 0.001). LPS-elevated KIM-1, TNFα, NOX4, p22 phox, and NFκB expressions were significantly decreased by choline or CDP-choline treatments (p < 0.001). CONCLUSION: Decreased ROS production in kidney tissues in treatment groups suggests that choline or CDP-choline may have therapeutic potential in endotoxemia-associated AKI via downregulating NOX4 and p22phox expressions (Tab. 1, Fig. 5, Ref. 45). Text in PDF www.elis.sk Keywords: endotoxemia, choline, cytidine diphosphate choline, acute kidney injury, reactive oxygen species.


Assuntos
Injúria Renal Aguda , Endotoxemia , Ratos , Animais , Citidina Difosfato Colina/farmacologia , Citidina Difosfato Colina/uso terapêutico , Citidina Difosfato Colina/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Endotoxemia/tratamento farmacológico , Endotoxemia/metabolismo , Lipopolissacarídeos/farmacologia , Colina/metabolismo , Colina/farmacologia , Colina/uso terapêutico , NADP/metabolismo , NADP/farmacologia , NADP/uso terapêutico , Estresse Oxidativo , Injúria Renal Aguda/tratamento farmacológico , Injúria Renal Aguda/induzido quimicamente , NF-kappa B/metabolismo , Rim
5.
Ther Umsch ; 79(10): 541-548, 2022.
Artigo em Alemão | MEDLINE | ID: mdl-36415939

RESUMO

Folate, Choline, and Vitamin B12 Supplementation for Pre-Conceptional and Pregnant Women Abstract. Inadequate maternal folate status is associated with higher risk of neural tube defects. The threshold for a good supply of folate (e.g., folate concentration in erythrocytes) is > 906nmol/L for all women who may become pregnant. This quite high folate concentration should already be reached before the onset of pregnancy, which can hardly be achieved with food. Supplementation with folate or folic acid is therefore strongly recommended for all women planning pregnancy (four to eight weeks before the start of pregnancy until the end of the first trimester). Folate supplementation can significantly reduce the risk of neural tube defects at the population level (approximately 50%), but it cannot prevent all cases. Recent studies show that low maternal choline and vitamin B12 intake during pregnancy is also associated with higher risk of neural tube defects. The role of choline in fetal brain development is biologically plausible based on its function as a source of methyl groups, acetylcholine, and cell membrane phospholipids and is not completely interchangeable with folate. Data on the association between maternal choline intake during preconception and the first trimester and fetal brain development suggest a causal relationship. The intake recommendation for choline is 480mg/day for pregnant women and 550mg/day for lactating women. Choline intake (mainly from animal-based diets) averages about 300mg/day and is thus insufficient for optimal supply during pregnancy. To date, no specific recommendations exist for choline supplementation before and during pregnancy. In Europe, prevention approaches at the population level are generally poorly followed. Therefore, individual counseling of young women planning pregnancy is more relevant than ever.


Assuntos
Defeitos do Tubo Neural , Vitamina B 12 , Feminino , Humanos , Gravidez , Animais , Vitamina B 12/uso terapêutico , Ácido Fólico/uso terapêutico , Colina/uso terapêutico , Gestantes , Lactação , Defeitos do Tubo Neural/prevenção & controle , Suplementos Nutricionais
6.
Alcohol Clin Exp Res ; 45(9): 1762-1774, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34342017

RESUMO

BACKGROUND: Prenatal alcohol exposure (PAE) is associated with smaller regional and global brain volumes. In rats, gestational choline supplementation mitigates adverse developmental effects of ethanol exposure. Our recent randomized, double-blind, placebo-controlled maternal choline supplementation trial showed improved somatic and functional outcomes in infants at 6.5 and 12 months postpartum. Here, we examined whether maternal choline supplementation protected the newborn brain from PAE-related volume reductions and, if so, whether these volume changes were associated with improved infant recognition memory. METHODS: Fifty-two infants born to heavy-drinking women who had participated in a choline supplementation trial during pregnancy underwent structural magnetic resonance imaging with a multi-echo FLASH protocol on a 3T Siemens Allegra MRI (median age = 2.8 weeks postpartum). Subcortical regions were manually segmented. Recognition memory was assessed at 12 months on the Fagan Test of Infant Intelligence (FTII). We examined the effects of choline on regional brain volumes, whether choline-related volume increases were associated with higher FTII scores, and the degree to which the regional volume increases mediated the effects of choline on the FTII. RESULTS: Usable MRI data were acquired in 50 infants (choline: n = 27; placebo: n = 23). Normalized volumes were larger in six of 12 regions in the choline than placebo arm (t ≥ 2.05, p ≤ 0.05) and were correlated with the degree of maternal choline adherence (ß ≥ 0.28, p ≤ 0.04). Larger right putamen and corpus callosum were related to higher FTII scores (r = 0.36, p = 0.02) with a trend toward partial mediation of the choline effect on recognition memory. CONCLUSIONS: High-dose choline supplementation during pregnancy mitigated PAE-related regional volume reductions, with larger volumes associated with improved 12-month recognition memory. These results provide the first evidence that choline may be neuroprotective against PAE-related brain structural deficits in humans.


Assuntos
Encéfalo/efeitos dos fármacos , Colina/uso terapêutico , Suplementos Nutricionais , Etanol/efeitos adversos , Fármacos Neuroprotetores/uso terapêutico , Adulto , Encéfalo/diagnóstico por imagem , Método Duplo-Cego , Feminino , Transtornos do Espectro Alcoólico Fetal , Humanos , Lactente , Recém-Nascido , Testes de Inteligência , Imageamento por Ressonância Magnética , Adesão à Medicação , Memória/efeitos dos fármacos , Gravidez , Estudos Prospectivos , Adulto Jovem
7.
Br J Nutr ; 123(2): 190-197, 2020 01 28.
Artigo em Inglês | MEDLINE | ID: mdl-31554528

RESUMO

A mixture of natural ingredients, namely, DHA, phosphatidylcholine, silymarin, choline, curcumin and d-α-tocopherol, was studied in subjects with non-alcoholic fatty liver disease (NAFLD). Primary endpoints were serum levels of hepatic enzymes, and other parameters of liver function, the metabolic syndrome and inflammation were the secondary endpoints. The coagulation-fibrinolysis balance was also thoroughly investigated, as NAFLD is associated with haemostatic alterations, which might contribute to increased cardiovascular risk of this condition. The present study involved a double-blind, randomised, multicentre controlled trial of two parallel groups. Subjects with NAFLD (18-80 years, either sex) received the active or control treatment for 3 months. All assays were performed on a total of 113 subjects before and at the end of supplementation. The hepatic enzymes aspartate aminotransferase (AST), alanine aminotransferase and γ-glutamyl transpeptidase decreased from 23·2 to 3·7 % after treatment, only the AST levels reaching statistical significance. However, no differences were found between control and active groups. Metabolic and inflammatory variables were unchanged, except for a slight (less than 10 %) increase in cholesterol and glucose levels after the active treatment. Coagulation-fibrinolytic parameters were unaffected by either treatment. In conclusion, chronic supplementation with the mixture of dietary compounds was well tolerated and apparently safe in NAFLD subjects. The trial failed to demonstrate any efficacy on relevant physiopathological markers, but its protocol and results may be useful to design future studies with natural compounds.


Assuntos
Suplementos Nutricionais , Hepatopatia Gordurosa não Alcoólica/sangue , Hepatopatia Gordurosa não Alcoólica/dietoterapia , Adulto , Idoso , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Biomarcadores/sangue , Colina/uso terapêutico , Curcumina/uso terapêutico , Ácidos Docosa-Hexaenoicos/uso terapêutico , Método Duplo-Cego , Combinação de Medicamentos , Feminino , Fibrinólise/efeitos dos fármacos , Humanos , Masculino , Pessoa de Meia-Idade , Fosfatidilcolinas/uso terapêutico , Silimarina/uso terapêutico , Tocoferóis/uso terapêutico , gama-Glutamiltransferase/sangue
8.
Parasitology ; 147(1): 58-64, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31556865

RESUMO

It is urgent to develop new antimalarial drugs with good therapeutic effects to address the emergence of drug resistance. Here, the artelinic acid-choline derivative (AD) was synthesized by dehydration reaction and esterification reaction, aimed to avoid the emergence of drug resistance by synergistic effect of artemisinins and choline derivative, which could compete with choline for rate-limiting enzymes in the phosphatidylcholine (PC) biosynthetic pathway. AD was formulated into liposomes (ADLs) by the thin-film hydration method. Efficacy of ADLs was evaluated by Peters 4-day suppression test. The suppression percentage against Plasmodium yoelii BY265 (PyBY265) in ADLs group was higher than those of positive control groups (dihydroartemisinin liposomes, P < 0.05) and other control groups (P ⩽ 0.05) at the doses of 4.4, 8.8, 17.6 µmol (kg·d)-1, respectively. The negative conversion fraction, recrudescence fraction and survival fraction of ADLs group were superior to other control groups. Pharmacokinetics in rats after intravenous injection suggested that ADLs exhibited higher exposure levels (indexed by area under concentration-time curve) than that of AD solution, artelinic acid liposomes or artelinic acid solution (P < 0.01). Taken together, ADLs exhibited promising antimalarial efficacy and pharmacokinetic characteristics.


Assuntos
Artemisininas/química , Colina/química , Lipossomos/farmacologia , Lipossomos/farmacocinética , Plasmodium yoelii/efeitos dos fármacos , Animais , Antimaláricos/farmacocinética , Antimaláricos/farmacologia , Antimaláricos/uso terapêutico , Artemisininas/farmacocinética , Artemisininas/farmacologia , Artemisininas/uso terapêutico , Colina/farmacocinética , Colina/farmacologia , Colina/uso terapêutico , Lipossomos/química , Lipossomos/uso terapêutico , Malária/tratamento farmacológico , Camundongos , Camundongos Endogâmicos ICR , Ratos , Ratos Sprague-Dawley
9.
Alcohol Clin Exp Res ; 43(9): 1887-1897, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31329297

RESUMO

BACKGROUND: We have recently shown that binge or heavy levels of alcohol drinking increase deoxyribonucleic acid (DNA) methylation and reduce gene expression of proopiomelanocortin (POMC) and period 2 (PER2) in adult human subjects (Gangisetty et al., Alcohol Clin Exp Res, 43, 2019, 212). One hypothesis would be that methylation of these 2 genes is consistently associated with alcohol exposure and could be used as biomarkers to predict risk of prenatal alcohol exposure (PAE). Results of the present study provided some support for this hypothesis. METHODS: We conducted a series of studies to determine DNA methylation changes in stress regulatory genes proopiomelanocortin (POMC) and period 2 (PER2) using biological samples from 3 separate cohorts of patients: (i) pregnant women who consumed moderate-to-high levels of alcohol or low/unexposed controls, (ii) children with PAE and non-alcohol-exposed controls, and (iii) children with PAE treated with or without choline. RESULTS: We found pregnant women who consumed moderate-to-high levels of alcohol and gave birth to PAE children had higher DNA methylation of POMC and PER2. PAE children also had increased methylation of POMC and PER2. The differences in the gene methylation of PER2 and POMC between PAE and controls did not differ by maternal smoking status. PAE children had increased levels of stress hormone cortisol and adrenocorticotropic hormone. Choline supplementation reduced DNA hypermethylation and increased expression of POMC and PER2 in children with PAE. CONCLUSIONS: These data suggest that PAE significantly elevates DNA methylation of POMC and PER2 and increases levels of stress hormones. Furthermore, these results suggest the possibility that measuring DNA methylation levels of PER2 and POMC in biological samples from pregnant women or from children may be useful for identification of a woman or a child with PAE.


Assuntos
Depressores do Sistema Nervoso Central/efeitos adversos , Etanol/efeitos adversos , Proteínas Circadianas Period/metabolismo , Efeitos Tardios da Exposição Pré-Natal , Pró-Opiomelanocortina/metabolismo , Adolescente , Adulto , Estudos de Casos e Controles , Criança , Pré-Escolar , Colina/farmacologia , Colina/uso terapêutico , Metilação de DNA/efeitos dos fármacos , Suplementos Nutricionais , Epigênese Genética/efeitos dos fármacos , Feminino , Transtornos do Espectro Alcoólico Fetal/metabolismo , Transtornos do Espectro Alcoólico Fetal/prevenção & controle , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Lipotrópicos/farmacologia , Lipotrópicos/uso terapêutico , Masculino , Gravidez
10.
Nutr Res Rev ; 32(1): 79-98, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30378509

RESUMO

The proportion of adults aged 60 years and over is expected to increase over the coming decades. This ageing of the population represents an important health issue, given that marked reductions to cerebral macro- and microstructural integrity are apparent with increasing age. Reduced cerebral structural integrity in older adults appears to predict poorer cognitive performance, even in the absence of clinical disorders such as dementia. As such, it is becoming increasingly important to identify those factors predicting cerebral structural integrity, especially factors that are modifiable. One such factor is nutritional intake. While the literature is limited, data from available cross-sectional studies indicate that increased intake of nutrients such as B vitamins (for example, B6, B12 and folate), choline, n-3 fatty acids and vitamin D, or increased adherence to prudent whole diets (for example, the Mediterranean diet) predicts greater cerebral structural integrity in older adults. There is even greater scarcity of randomised clinical trials investigating the effects of nutritional supplementation on cerebral structure, though it appears that supplementation with B vitamins (B6, B12 and folic acid) or n-3 fatty acids (DHA or EPA) may be beneficial. The current review presents an overview of available research examining the relationship between key nutrients or adherence to select diets and cerebral structural integrity in dementia-free older adults.


Assuntos
Envelhecimento , Encéfalo/efeitos dos fármacos , Cognição/efeitos dos fármacos , Disfunção Cognitiva/prevenção & controle , Dieta , Suplementos Nutricionais , Idoso , Idoso de 80 Anos ou mais , Colina/farmacologia , Colina/uso terapêutico , Demência/prevenção & controle , Ácidos Graxos Ômega-3/farmacologia , Ácidos Graxos Ômega-3/uso terapêutico , Humanos , Pessoa de Meia-Idade , Polifenóis/farmacologia , Polifenóis/uso terapêutico , Vitaminas/farmacologia , Vitaminas/uso terapêutico
11.
Cell Physiol Biochem ; 45(5): 2136-2144, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29533930

RESUMO

Backgroud/Aims: Growing evidence suggests that both cardiomyocyte apoptosis and excessive autophagy exacerbates cardiac dysfunction during myocardial ischemia-reperfusion (IR). As a precursor of acetylcholine, choline has been found to protect the heart by repressing ischemic cardiomyocyte apoptosis. However, the relationship between choline and cardiomyocyte autophagy is unclear. The present study aimed to investigate whether autophagy was involved in the cardioprotection of choline during IR. METHODS: Rats were subjected to 30 min reversible ischemia by ligation of left anterior descending coronary artery followed by reperfusion for 2 h. Choline (5 mg/kg, i.v.) alone or along with rapamycin (5 mg/ kg, i.p.) were injected 30 min before ischemia. Transmission electron microscopy, hematoxylin and eosin (HE) and TUNEL staining were conducted to evaluate the effect of choline on cardiac apoptosis and autophagy. Protein levels of autophagic markers including LC3, beclin-1 and p62 as well as Akt and mammalian target of rapamycin (mTOR) were examined by Western blotting. RESULTS: Myocardial IR-induced cardiac apoptosis and accumulation of autophagosomes was attenuated by choline. Choline treatment significantly ameliorated myocardial IR-induced autophagic activity characterized by repression of beclin-1 over-activation, the reduction of autophagosomes, the LC3-II/LC3-I ratio, and p62 protein abundance. In addition, IR-induced downregulation of p-Akt/mTOR cascade was increased by choline. However, the above functions of choline were abolished by rapamycin. CONCLUSION: These findings suggest that choline plays a protective role against myocardial IR injury by inhibiting excessive autophagy, which might be associated with the activation of Akt/mTOR pathway. This study provides new mechanistic understanding of cardioprotective effect of choline and suggests novel potential therapeutic targets for cardiac IR injury.


Assuntos
Autofagia , Colina/uso terapêutico , Traumatismo por Reperfusão Miocárdica/prevenção & controle , Miocárdio/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Serina-Treonina Quinases TOR/metabolismo , Animais , Autofagossomos/metabolismo , Autofagia/efeitos dos fármacos , Proteína Beclina-1/metabolismo , Colina/farmacologia , Regulação para Baixo/efeitos dos fármacos , Masculino , Microscopia Eletrônica de Transmissão , Proteínas Associadas aos Microtúbulos/metabolismo , Traumatismo por Reperfusão Miocárdica/patologia , Miocárdio/patologia , Ratos , Ratos Wistar , Proteína Sequestossoma-1/metabolismo , Transdução de Sinais/efeitos dos fármacos , Sirolimo/farmacologia , Serina-Treonina Quinases TOR/antagonistas & inibidores
12.
Alcohol Clin Exp Res ; 42(9): 1591-1611, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29928762

RESUMO

Prenatal alcohol exposure results in cognitive, behavioral, and neurological deficits in offspring. There is an urgent need for safe and effective treatments to overcome these effects. Maternal choline supplementation has been identified as a potential intervention. Our objective was to review preclinical and clinical studies using choline supplementation in known cases of fetal alcohol exposure to determine its effectiveness in ameliorating deficits in offspring. A systematic search of 6 electronic databases was conducted and studies selected by reviewing titles/abstracts against specific inclusion/exclusion criteria. Study characteristics, population demographics, alcohol exposure, and intervention methods were tabulated, and quality of reporting was assessed. Data on cognitive, behavioral, and neurological outcomes were extracted and tabulated. Quantitative analysis was performed to determine treatment effects for individual study outcomes. A total of 189 studies were retrieved following duplicate removal. Of these, 22 studies (2 randomized controlled trials, 2 prospective cohort studies, and 18 preclinical studies) met the full inclusion/exclusion criteria. Choline interventions were administered at different times relative to alcohol exposure, impacting on their success to prevent deficits for specific outcomes. Only 1 clinical study showed significant improvements in information processing in 6-month-old infants from mothers treated with choline during pregnancy. Preclinical studies showed significant amelioration of deficits due to prenatal alcohol exposure across a wide variety of outcomes, including epigenetic/molecular changes, gross motor, memory, and executive function. This review suggests that choline supplementation has the potential to ameliorate specific behavioral, neurological, and cognitive deficits in offspring caused by fetal alcohol exposure, at least in preclinical studies. As only 1 clinical study has shown benefit, we recommend more clinical trials be undertaken to assess the effectiveness of choline in preventing deficits across a wider range of cognitive domains in children.


Assuntos
Consumo de Bebidas Alcoólicas/tratamento farmacológico , Colina/uso terapêutico , Disfunção Cognitiva/tratamento farmacológico , Suplementos Nutricionais , Doenças do Sistema Nervoso/tratamento farmacológico , Efeitos Tardios da Exposição Pré-Natal/tratamento farmacológico , Consumo de Bebidas Alcoólicas/efeitos adversos , Consumo de Bebidas Alcoólicas/psicologia , Animais , Animais Recém-Nascidos , Colina/farmacologia , Ensaios Clínicos como Assunto/métodos , Cognição/efeitos dos fármacos , Cognição/fisiologia , Disfunção Cognitiva/induzido quimicamente , Disfunção Cognitiva/psicologia , Avaliação Pré-Clínica de Medicamentos/métodos , Etanol/administração & dosagem , Etanol/toxicidade , Feminino , Humanos , Doenças do Sistema Nervoso/induzido quimicamente , Doenças do Sistema Nervoso/psicologia , Gravidez , Efeitos Tardios da Exposição Pré-Natal/induzido quimicamente , Efeitos Tardios da Exposição Pré-Natal/psicologia , Resultado do Tratamento
13.
Dev Med Child Neurol ; 60(9): 897-905, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29806081

RESUMO

AIM: To investigate whether neonates at risk for neurodevelopmental impairment have improved neurodevelopment after docosahexaenoic acid, choline, and uridine-5-monophosphate supplementation versus controls. METHOD: Recruitment was from UK neonatal units. Eligible for inclusion were infants born at less than 31 weeks' gestation with a weight less than the ninth centile; infants born at less than 31 weeks' gestation with a grade II or higher intraventricular haemorrhage/preterm white matter injury; infants born between 31 weeks' and 40 weeks' gestation plus 28 days with a grade II or higher intraventricular haemorrhage/preterm white matter injury, moderate or severe hypoxic-ischaemic encephalopathy, or defined neuroimaging abnormalities. Treatment/control supplementation was for 2 years (double-blind, randomized, controlled design). Infants were stratified according to sex, gestation, and brain injury severity. Primary outcome was cognitive composite score (CCS) of the Bayley Scales of Infant Development, Third Edition (Bayley-III at 24mo). Secondary outcomes were language composite score (LCS) of the Bayley-III, motor composite score (MCS) of the Bayley-III, and Vineland Adaptive Behaviour Scales, Second Edition (VABS-II) score. RESULTS: Sixty-two neonates were recruited, 59 were randomized (34 males, 25 females). Fifty-three started supplementation. Most families found supplementation acceptable. The treatment group CCS-Bayley-III scores were non-significantly higher than controls (mean score difference at 24mo: 9.0; 95% confidence interval -0.2 to 18.2). Language and VABS-II scores, but not motor score, were non-significantly higher in the treatment group. INTERPRETATION: Most families found supplementation feasible. Improved neurodevelopmental outcomes in the treatment group were not statistically significant. A larger multicentre trial exploration is warranted. WHAT THIS PAPER ADDS: Dietary supplementation of neonates at risk of neurodevelopmental impairment is feasible. No statistically significant neurodevelopmental advantages were identified for the treatment group compared to controls. Treatment group cognitive and language advantage are of a clinically meaningful magnitude.


Assuntos
Colina/uso terapêutico , Ácidos Docosa-Hexaenoicos/uso terapêutico , Doenças do Prematuro/prevenção & controle , Transtornos do Neurodesenvolvimento/prevenção & controle , Apoio Nutricional , Uridina Monofosfato/uso terapêutico , Desenvolvimento Infantil , Método Duplo-Cego , Feminino , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Doenças do Prematuro/etiologia , Masculino , Transtornos do Neurodesenvolvimento/etiologia
14.
Dev Med Child Neurol ; 60(9): 906-913, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29023666

RESUMO

AIM: To investigate whether docosahexaenoic acid (DHA), choline, and uridine-5-monophosphate (UMP) supplementation improves neurodevelopmental outcome in infants with suspected cerebral palsy (CP) versus a comparison group of children. METHOD: Infants aged 1 to 18 months with suspected CP were recruited from UK child development centres. Participants received daily treatment or control supplementation for 2 years (double-blind randomized control design). Stratification was by age, sex, predominant pattern of motor involvement (four limbs or other), and visual impairment (or not). The primary outcome was the cognitive composite score of the Bayley Scales of Infant and Toddler Development, Third Edition (CCS-Bayley-III). Secondary outcomes included language composite and motor composite scores of the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III). RESULTS: Forty infants were recruited; 35 began supplementation, 29 completed 1 to 2 years' supplementation. The treatment group CCS-Bayley-III was non-significantly higher than the comparison group (mean 77.7 [SD 19.2] and 72.2 [SD 19.8] respectively, mean modelled difference 4.4 [-2.8, 11.6]). The treatment group language scores, but not motor scores, were non-significantly higher than for the comparison group. INTERPRETATION: Most families found supplementation feasible. No statistically significant differences in neurodevelopmental outcome between the treatment and comparison groups were identified. Further investigation of neurodevelopmental outcome after supplementation with DHA, choline, and UMP of infants with suspected CP is warranted. WHAT THIS PAPER ADDS: This was the first trial of phosphatidylcholine precursor supplementation in infants with suspected cerebral palsy (CP). Families of infants with suspected CP found 2-year nutritional supplementation feasible. There was no statistically significant neurodevelopmental advantage for the treatment group versus the comparison group. However, treatment group cognitive and language advantage were of clinically meaningful magnitude.


Assuntos
Paralisia Cerebral/complicações , Colina/uso terapêutico , Ácidos Docosa-Hexaenoicos/uso terapêutico , Transtornos do Neurodesenvolvimento/prevenção & controle , Apoio Nutricional , Uridina Monofosfato/uso terapêutico , Paralisia Cerebral/psicologia , Paralisia Cerebral/terapia , Desenvolvimento Infantil , Método Duplo-Cego , Feminino , Humanos , Lactente , Masculino , Transtornos do Neurodesenvolvimento/etiologia
15.
Cochrane Database Syst Rev ; 7: CD012171, 2018 07 25.
Artigo em Inglês | MEDLINE | ID: mdl-30043448

RESUMO

BACKGROUND: Ear wax (cerumen) is a normal bodily secretion that can become a problem when it obstructs the ear canal. Symptoms attributed to wax (such as deafness and pain) are among the commonest reasons for patients to present to primary care with ear trouble.Wax is part of the ear's self-cleaning mechanism and is usually naturally expelled from the ear canal without causing problems. When this mechanism fails, wax is retained in the canal and may become impacted; interventions to encourage its removal may then be needed. Application of ear drops is one of these methods. Liquids used to remove and soften wax are of several kinds: oil-based compounds (e.g. olive or almond oil); water-based compounds (e.g. sodium bicarbonate or water itself); a combination of the above or non-water, non-oil-based solutions, such as carbamide peroxide (a hydrogen peroxide-urea compound) and glycerol. OBJECTIVES: To assess the effects of ear drops (or sprays) to remove or aid the removal of ear wax in adults and children. SEARCH METHODS: We searched the Cochrane ENT Trials Register; Cochrane Register of Studies; PubMed; Ovid Embase; CINAHL; Web of Science; ClinicalTrials.gov; ICTRP and additional sources for published and unpublished trials. The date of the most recent search was 23 March 2018. SELECTION CRITERIA: Randomised controlled trials (RCTs) in which a 'cerumenolytic' was compared with no treatment, water or saline, an alternative liquid treatment (oil or almond oil) or another 'cerumenolytic' in adults or children with obstructing or impacted ear wax. DATA COLLECTION AND ANALYSIS: We used the standard methodological procedures expected by Cochrane. The primary outcomes were 1) the proportion of patients (or ears) with complete clearance of ear wax and 2) adverse effects (discomfort, irritation or pain). Secondary outcomes were: extent of wax clearance; proportion of people (or ears) with relief of symptoms due to wax; proportion of people (or ears) requiring further intervention to remove wax; success of mechanical removal of residual wax following treatment; any other adverse effects recorded and cost. We used GRADE to assess the quality of the evidence for each outcome; this is indicated in italics. MAIN RESULTS: We included 10 studies, with 623 participants (900 ears). Interventions included: oil-based treatments (triethanolamine polypeptide, almond oil, benzocaine, chlorobutanol), water-based treatments (docusate sodium, carbamide peroxide, phenazone, choline salicylate, urea peroxide, potassium carbonate), other active comparators (e.g. saline or water alone) and no treatment. Nine of the studies were more than 15 years old.The overall risk of bias across the 10 included studies was low or unclear. PRIMARY OUTCOME: proportion of patients (or ears) with complete clearance of ear waxSix studies (360 participants; 491 ears) contributed quantitative data and were included in our meta-analyses.Active treatment versus no treatmentOnly one study addressed this comparison. The proportion of ears with complete clearance of ear wax was higher in the active treatment group (22%) compared with the no treatment group (5%) after five days of treatment (risk ratio (RR) 4.09, 95% confidence interval (CI) 1.00 to 16.80); one study; 117 ears; NNTB = 8) (low-quality evidence).Active treatment versus water or salineWe found no evidence of a difference in the proportion of patients (or ears) with complete clearance of ear wax when the active treatment group was compared to the water or saline group (RR 1.47, 95% CI 0.79 to 2.75; three studies; 213 participants; 257 ears) (low-quality evidence). Two studies applied drops for five days, but one study only applied the drops for 15 minutes. When we excluded this study in a sensitivity analysis it did not change the result.Water or saline versus no treatmentThis comparison was only addressed in the single study cited above (active versus no treatment) and there was no evidence of a difference in the proportion of ears with complete wax clearance when comparing water or saline with no treatment after five days of treatment (RR 4.00, 95% CI 0.91 to 17.62; one study; 76 ears) (low-quality evidence).Active treatment A versus active treatment BSeveral single studies evaluated 'head-to-head' comparisons between two active treatments. We found no evidence to show that one was superior to any other.Subgroup analysis of oil-based active treatments versus non-oil based active treatmentsWe found no evidence of a difference in this outcome when oil-based treatments were compared with non-oil-based active treatments. PRIMARY OUTCOME: adverse effects: discomfort, irritation or painOnly seven studies planned to measure and did report this outcome. Only two (141 participants;176 ears) provided useable data. There was no evidence of a significant difference in the number of adverse effects between the types of ear drops in these two studies. We summarised the remaining five studies narratively. All events were mild and reported in fewer than 30 participants across the seven studies (low-quality evidence).Secondary outcomesThree studies reported 'other' adverse effects (how many studies planned to report these is unclear). The available information was limited and included occasional reports of dizziness, unpleasant smell, tinnitus and hearing loss. No significant differences between groups were reported. There were no emergencies or serious adverse effects reported in any of the 10 studies.There was very limited or no information available on our remaining secondary outcomes. AUTHORS' CONCLUSIONS: Although a number of studies aimed to evaluate whether or not one type of cerumenolytic is more effective than another, there is no high-quality evidence to allow a firm conclusion to be drawn and the answer remains uncertain.A single study suggests that applying ear drops for five days may result in a greater likelihood of complete wax clearance than no treatment at all. However, we cannot conclude whether one type of active treatment is more effective than another and there was no evidence of a difference in efficacy between oil-based and water-based active treatments.There is no evidence to show that using saline or water alone is better or worse than commercially produced cerumenolytics. Equally, there is also no evidence to show that using saline or water alone is better than no treatment.


Assuntos
Cerume , Meato Acústico Externo , Higiene , Tensoativos/uso terapêutico , Adulto , Antipirina/uso terapêutico , Benzocaína/uso terapêutico , Peróxido de Carbamida , Carbonatos/uso terapêutico , Criança , Clorobutanol/uso terapêutico , Colina/análogos & derivados , Colina/uso terapêutico , Ácido Dioctil Sulfossuccínico/uso terapêutico , Combinação de Medicamentos , Etanolaminas/uso terapêutico , Humanos , Peróxidos/uso terapêutico , Soluções Farmacêuticas/uso terapêutico , Óleos de Plantas/uso terapêutico , Potássio/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto , Salicilatos/uso terapêutico , Cloreto de Sódio/uso terapêutico , Ureia/análogos & derivados , Ureia/uso terapêutico , Água
16.
J Neuroinflammation ; 14(1): 170, 2017 Aug 24.
Artigo em Inglês | MEDLINE | ID: mdl-28838312

RESUMO

BACKGROUND: Neuroinflammatory processes are considered a double-edged sword, having both protective and detrimental effects in the brain. Microglia, the brain's resident innate immune cells, are a key component of neuroinflammatory response. There is a growing interest in developing drugs to target microglia and control neuroinflammatory processes. In this regard, docosahexaenoic acid (DHA), the brain's n-3 polyunsaturated fatty acid, is a promising molecule to regulate pro-inflammatory microglia and cytokine production. Several works reported that the bioavailability of DHA to the brain is higher when DHA is acylated to phospholipid. In this work, we analyzed the anti-inflammatory activity of DHA-phospholipid, either acetylated at the sn-1 position (AceDoPC, a stable form thought to have superior access to the brain) or acylated with palmitic acid at the sn-1 position (PC-DHA) using a lipopolysaccharide (LPS)-induced neuroinflammation model both in vitro and in vivo. METHODS: In vivo, adult C57Bl6/J mice were injected intravenously (i.v.) with either AceDoPC or PC-DHA 24 h prior to LPS (i.p.). For in vitro studies, immortalized murine microglia cells BV-2 were co-incubated with DHA forms and LPS. AceDoPC and PC-DHA effect on brain or BV-2 PUFA content was assessed by gas chromatography. LPS-induced pro-inflammatory cytokines interleukin IL-1ß, IL-6, and tumor necrosis factor (TNF) α production were measured by quantitative PCR (qPCR) or multiplex. IL-6 receptors and associated signaling pathway STAT3 were assessed by FACS analysis and western-blot in vitro. RESULTS: In vivo, a single injection of AceDoPC or PC-DHA decreased LPS-induced IL-6 production in the hippocampus of mice. This effect could be linked to their direct effect on microglia, as revealed in vitro. In addition, AceDoPC or PC-DHA reduced IL-6 receptor while only AceDoPC decreased IL-6-induced STAT3 phosphorylation. CONCLUSIONS: These results highlight the potency of administered DHA-acetylated to phospholipids-to rapidly regulate LPS-induced neuroinflammatory processes through their effect on microglia. In particular, both IL-6 production and signaling are targeted by AceDoPC in microglia.


Assuntos
Mediadores da Inflamação/metabolismo , Lipopolissacarídeos/toxicidade , Microglia/metabolismo , Fosfatidilcolinas/uso terapêutico , Animais , Linhagem Celular Transformada , Colina/farmacologia , Colina/uso terapêutico , Ácidos Docosa-Hexaenoicos/farmacologia , Ácidos Docosa-Hexaenoicos/uso terapêutico , Inflamação/induzido quimicamente , Inflamação/metabolismo , Inflamação/patologia , Mediadores da Inflamação/antagonistas & inibidores , Camundongos , Camundongos Endogâmicos C57BL , Microglia/efeitos dos fármacos , Microglia/patologia , Fosfatidilcolinas/farmacologia , Fosfolipídeos/farmacologia , Fosfolipídeos/uso terapêutico
17.
Nutr Neurosci ; 20(6): 327-335, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26714620

RESUMO

OBJECTIVES: Choline (Ch) is an essential nutrient that acts as a cognitive facilitator when administered during perinatal periods, and it has been recognised as a 'pharmacological' agent that can ease cognitive dysfunctions provoked by exposure to damaging stimuli during early developmental stages. The aim of the present work is to determine whether providing a diet rich in Ch would reduce the severity of the memory deficit provoked by a neonatal stress episode in male adult rats. METHODS: The effect of Ch on memory was measured using memory tasks such as object and place recognition. Ontogenetic manipulations were conducted during two sensitive developmental periods. During the first post-natal (PN) 14 days, only the male rat pups were selected and half of them were separated from the mother, group maternal separation (MS). Subsequently, during periadolescence (PN 21-60), the rats were exposed to a deficient (DEF = 0 g/kg Ch chloride), sufficient (CON = 1.1 g/kg Ch chloride), or supplemented (SUP = 5 g/kg Ch chloride) diets for this nutrient. RESULTS: The results indicated that for group MS, only rats fed with the SUP diet were able to recognise the familiar object and place that had been experienced 24 hours before, unlike groups DEF and CON. In addition, whereas rats in the non-separated group (No-MS) recognised the object independently of the diet, only rats that received a DEF diet failed to recognise the place, showing that a Ch deficit affects spatial memory tasks. DISCUSSION: These results show that Ch supplementation during periadolescence can attenuate the memory deficit provoked by extended neonatal stress.


Assuntos
Colina/uso terapêutico , Transtornos Cognitivos/prevenção & controle , Suplementos Nutricionais , Privação Materna , Transtornos da Memória/prevenção & controle , Neurogênese , Fármacos Neuroprotetores/uso terapêutico , Animais , Animais Recém-Nascidos , Deficiência de Colina/dietoterapia , Deficiência de Colina/fisiopatologia , Transtornos Cognitivos/etiologia , Masculino , Memória , Transtornos da Memória/etiologia , Distribuição Aleatória , Ratos Wistar , Reconhecimento Psicológico , Memória Espacial
18.
BMC Musculoskelet Disord ; 18(1): 2, 2017 01 05.
Artigo em Inglês | MEDLINE | ID: mdl-28056936

RESUMO

BACKGROUND: The aim of this study was to assess the efficacy of choline-stabilized orthosilicic acid (ch-OSA) in patients with symptomatic knee osteoarthritis (OA). METHODS: In a multicenter, double-blind, placebo-controlled study, 211 patients with knee OA (Kellgren and Lawrence grade II or III) and moderate to moderately severe pain were randomly allocated to ch-OSA or placebo for 12 weeks. The primary outcome was the change in the WOMAC pain subscale from baseline to week 12. Secondary outcomes were changes from baseline to week 12 in WOMAC total, WOMAC stiffness, WOMAC physical function, Subject Global Assessment and levels of cartilage degradation biomarkers C-terminal telopeptide of collagen type II (CTX-II) and cartilage oligomeric matrix protein (COMP). Pre-specified subgroup analyses included the effect of gender. RESULTS: A total of 166 (120 women, 46 men) patients were included in the analysis (87 and 79 in the ch-OSA and placebo group, respectively). In the total study population, no differences were observed between the two treatment groups for the different outcomes but significant treatment x gender interactions were found. In men taking ch-OSA, a significant improvement in WOMAC total, WOMAC stiffness and WOMAC physical function as well as a lower increase in biomarker levels of cartilage degradation was observed, but not in women. The change in WOMAC pain showed a similar positive trend in men taking ch-OSA. CONCLUSION: After 12 weeks of treatment, no effect was found of ch-OSA in the total study population on clinical parameters and biomarkers, but a gender interaction was observed. In men, ch-OSA was found effective in reducing symptoms of knee OA, which was associated with a slight but significant reduction of biomarkers that are related to cartilage degradation. TRIAL REGISTRATION: The study was registered retrospectively: ISRCTN88583133 . Registration date: 2015-10-07.


Assuntos
Proteína de Matriz Oligomérica de Cartilagem/análise , Colina/uso terapêutico , Colágeno Tipo II/análise , Osteoartrite do Joelho/tratamento farmacológico , Manejo da Dor/métodos , Ácido Silícico/uso terapêutico , Administração Oral , Idoso , Biomarcadores/análise , Cartilagem/patologia , Colina/administração & dosagem , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Medição da Dor , Fatores Sexuais , Ácido Silícico/administração & dosagem , Resultado do Tratamento
19.
J Pediatr Gastroenterol Nutr ; 62(4): 618-26, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26465792

RESUMO

BACKGROUND: Choline depletion is seen in cystic fibrosis (CF) and pancreatic insufficiency in spite of enzyme treatment and may result in liver, fatty acid, and muscle abnormalities. This study evaluated the efficacy and safety of an easily absorbed choline-rich structured lipid (LYM-X-SORB™ [LXS]) to improve choline status. METHODS: Children with CF and pancreatic insufficiency were randomized to LXS or placebo in a 12-month double blind trial. Dietary choline intake, plasma cholines, plasma and fecal phospholipids, coefficient of fat absorption, pulmonary function, growth status, body composition, and safety measures were assessed. Magnetic resonance spectroscopy for calf muscle choline and liver fat were assessed in a subgroup and compared with a healthy comparison group matched for age, sex, and body size. RESULTS: A total of 110 subjects were enrolled (age 10.4 ±â€Š3.0 years). Baseline dietary choline, 88% recommended, increased 3-fold in the LXS group. Plasma choline, betaine, and dimethylglycine increased in the LXS but not placebo (P = 0.007). Plasma lysophosphatidylcholine and phosphatidylcholine increased, and fecal phosphatidylcholine/phosphatidylethanolamine ratio decreased (P ≤ 0.05) in LXS only, accompanied by a 6% coefficient of fat absorption increase (P = 0.001). Children with CF had higher liver fat than healthy children and depleted calf muscle choline at baseline. Muscle choline concentration increased in LXS and was associated with improvement in plasma choline status. No relevant changes in safety measures were evident. CONCLUSIONS: LXS had improved choline intake, plasma choline status, and muscle choline stores compared with placebo group. The choline-rich supplement was safe, accepted by participants, and improved choline status in children with CF.


Assuntos
Fenômenos Fisiológicos da Nutrição do Adolescente , Fenômenos Fisiológicos da Nutrição Infantil , Colina/uso terapêutico , Fibrose Cística/dietoterapia , Gorduras na Dieta , Suplementos Nutricionais , Lisofosfatidilcolinas/uso terapêutico , Estado Nutricional , Adolescente , Criança , Pré-Escolar , Colina/efeitos adversos , Colina/análise , Colina/sangue , Deficiência de Colina/etiologia , Deficiência de Colina/prevenção & controle , Fibrose Cística/sangue , Fibrose Cística/metabolismo , Gorduras na Dieta/efeitos adversos , Gorduras na Dieta/análise , Gorduras na Dieta/metabolismo , Suplementos Nutricionais/efeitos adversos , Suplementos Nutricionais/análise , Método Duplo-Cego , Feminino , Humanos , Absorção Intestinal , Perna (Membro) , Metabolismo dos Lipídeos , Fígado/metabolismo , Lisofosfatidilcolinas/efeitos adversos , Lisofosfatidilcolinas/análise , Lisofosfatidilcolinas/metabolismo , Masculino , Músculo Esquelético/metabolismo , Aceitação pelo Paciente de Cuidados de Saúde
20.
Nutr Neurosci ; 19(10): 425-433, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26046479

RESUMO

OBJECTIVES: Adequate choline supply during the perinatal period is critical for proper brain formation, when robust neurogenesis and neuronal maturation occur. Therefore, the objective of this study was to examine the impact of perinatal choline status on neurodevelopment. METHODS: Sows were fed a choline-deficient (CD) or choline-sufficient (CS) diet during the last half of the gestational period. At 2 days of age, piglets from sows within each prenatal treatment group were further stratified into postnatal treatment groups and provided either a CD or CS milk replacer, resulting in four treatment groups. At 30 days of age, piglets underwent magnetic resonance imaging (MRI) procedures to analyze structural and metabolite differences. RESULTS: Single-voxel spectroscopy (SVS) analysis revealed postnatally CS piglets had higher (P < 0.001) concentrations of glycerophosphocholine-phosphocholine than postnatally CD piglets. Volumetric analysis indicated smaller (P < 0.006) total brain volumes in prenatally CD piglets compared with prenatally CS piglets. Differences (P < 0.05) in the corpus callosum, pons, midbrain, thalamus, and right hippocampus, were observed as larger region-specific volumes proportional to total brain size in prenatally CD piglets compared with CS piglets. Diffusion tensor imaging (DTI) suggested interactions (P < 0.05) between prenatal and postnatal choline status in fractional anisotropy values of the thalamus and right hippocampus. Prenatally CS piglets had lower cerebellar radial diffusivity (P = 0.045) compared with prenatally CD piglets. DISCUSSION: This study demonstrates that prenatal choline deficiency has profound effects by delaying neurodevelopment as evidenced by structural and metabolic MRI assessments.


Assuntos
Encéfalo/patologia , Deficiência de Colina/fisiopatologia , Modelos Animais de Doenças , Desenvolvimento Fetal , Retardo do Crescimento Fetal/etiologia , Fenômenos Fisiológicos da Nutrição Materna , Neurogênese , Animais , Animais Recém-Nascidos , Encéfalo/diagnóstico por imagem , Encéfalo/metabolismo , Colina/metabolismo , Colina/uso terapêutico , Deficiência de Colina/dietoterapia , Dieta/efeitos adversos , Imagem de Tensor de Difusão , Feminino , Retardo do Crescimento Fetal/diagnóstico por imagem , Retardo do Crescimento Fetal/metabolismo , Retardo do Crescimento Fetal/patologia , Imageamento Tridimensional , Imageamento por Ressonância Magnética , Masculino , Neuroimagem , Tamanho do Órgão , Fosfatidilcolinas/metabolismo , Fosforilcolina/metabolismo , Gravidez , Sus scrofa
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